Fluid dispensing apparatus



y 1941- w. M. CARROLL 2,250,326

FLUID DISPENSING APPARATUS Filed Jan. 25, 1957 11 Sheets-Sheet 1 N R U a I ilil GALLONS williamM Carroll INV'ENTOR.

WWfW ATTORNEY.

July 22, 1941. w. M. CARROLL FLUID DISPENSING APPARATUS l1 Sheets-Sheet 2 Filed Jan. 23, 1937 July 22, 1941. w CARROLL 2,250,326

FLUID DI SPENS ING APPARATUS Filed Jan. 25, 1937 11 Shets-Sheet s FIG. 5 393 223 639 .1 o IG. 5 w mvE 0' ATTORNEY.

July 22, 1941. w, CARROLL 2,250,326

FLUID DI SPENS ING APPARATUS Filed Jan. 23, 1937 ll Sheets-Sheet 4 65 Ill/A DATE I93 N0.

SOLD T0 ADDRESS GALLQNS TENTHS O O O 0 2E GALLONS -BELIVERED 3 READlNG O O O O ATSTART or an.

BOWSER XACTO RECORDING PRINTER ATTORNEY.

CUSTOMERS TRUCK D R N0. N0. 6

rnooucw' nous "1c: AMOUNT BY W y 22, 1941- w. M. CARROLL 2,250,326

FLUID DISPENSING APPARATUS Filed Jan. 25, 1937 11 Sheets-Sheet s willium MCurrou E INVENTOR.

6 BY M Wfm ATTORNEY.

July 22, 1941. w. M. CARROLL FLUID DISPENSING APPARATUS Filed Jan. 23, 1937 11. Sheets-Sheet 6 M5WR QME

y 1941- w. M. CARROLL 2,250,326

FLUID DISPENSING APPARATUS Filed Jan. 25, 1957 ll Sheets-Sheet 7 111mm Mcmmu I NVENTOR.

ATTORNEY.

July 22, 1941. w. M. CARROLL FLUID DISPENSING APPARATUS Filed Jan. 23, 1957 ll Sheets-Sheet 8 cum]; INVENTO ATTORNEY.

July 22, 1941. w CARROLL 2,250,326

FLUID DI SPENS ING APPARATUS Filed Jan. 25, 1937 ll wits-Sheet 9 111mm Mc ou INVE ATTORNEY.

y 1941- w. M. CARROLL 2,250,326

FLUID DISPENSING APPARATUS Filed Jan. 23, 1937 ll Sheets-Sheet l0 Patented July 22, 1941 FLUID DISPENSING APPARATUS William M. Carroll, Fort Wayne, Ind., assignor to S. F. Bowser & Company, Incorporated, Fort Wayne, Ind., a corporation of Indiana Application January 23, 1937, Serial No. 122,052

36 Claims.

This invention relates to a dispensing system in which a series of operations necessary to effect a dispensing operation are carried out in a predetermined sequence to accomplish the delivery of 1 a. commodity such as liquid fuel, and in which the sequence of operations is mechanically enforced in order to insure a proper delivery of the liquid, and further, a permanent record of the transaction is made.

In recent years, the advent of the domestic oil burner for heating dwellings, stores, apartments, etc., has introduced various problems in the delivery of liquid fuel. It is apparent that with this type of heating equipment, the number of deliveries of liquid fuel was greatly enlarged.

The new demand for service led to the use of tank trucks for delivering the fuel and this in turn introduced problems of accurately dispensing liquid fuel to the customers. The use of auge sticks in connection with either the truck tank or the consumers tank was unsatisfactory because, at best, these measures were inaccurate, consequently, meters were developed for use with the truck tanks but they introduced problems of dishonesty on the part of tank wagon operator and lack of confidence on the part of the customerin the honesty of the dealer and the operator,

The register used with meters of this type provided no check upon the truck operator and unless the customer himself read the register before delivery of his fuel commenced and after it was completed, he would have nothing but the word of the operator to assure him that the delivery of the required amount of fuel had been made. Often these deliveries were made in the absence of the purchaser and he had no opportunity to check the operator.

Further, since the bills were normally made out by the operator of the tank wagon, the accuracy of the bill depended upon the accuracy with which the readings of the register were taken and also the accuracy of the operators arithmetic.

Such conditions were provocative of disagreements between dealer and customer and of detriment to both. It is one purpose of applicants invention to eliminate such causes of friction between the dealer and the consumer.

One purpose of the invention is to provide a system of interlocking mechanisms on dispensing equipment which will insure a correct delivery of fuel.

Another purpose of the invention is to provide certain data which enables the dealer to check upon the honesty of the truck operator.

Yet another purpose of the invention is to provide certain data which will facilitate the bookkeeping operations of the dealer.

Still another object of the invention is to provide a printed record which discloses directly the volume of fluid dispensed.

Still a further object of the invention is to provide a printed record of each delivery to protect the customer and to assist the dealer.

Another object of the invention is to provide a system of interlocks which require a definite sequence of operations of the machine by the truck operator thereby insuring a proper delivery.

A further object of the invention is to provide means for eliminating arithmetical calculations of the operator or the customer.

Further objects are as follows:

To provide means for printing a ticket at the beginning and end of a dispensing operation to show the condition of the registers at the initiation and termination of a delivery.

To provide means for identifying the mechanism from which the ticket was issued.

To provide interlocking means which requires the insertion of a ticket before operation of the delivery means can take place.

To provide means for enclosing and protecting the ticket against damage due to weather conditions.

To provide means to prevent removal of the ticket before a final printing operation has been effected.

To provide means whereby every operation of the control valve is recorded.

To provide a mechanism which will cause automatic closure of the control valve when a predetermined quantity of fluid has been dispensed.

To provide means for resetting the registers to zero.

To provide means interlocking said resetting means and said printing means so that an impression will be taken by the printing means when the registers have been reset.

To provide interlocking means which prevent dispensing until resetting has been accomplished.

To provide means for automatically taking an impression from one of the registers when dispensing is terminated.

To provide emergency releasing mechanism to permit termination of dispensing before the predetermining mechanism functions.

To provide means whereby the operation of the emergency release mechanism effects the operation of the printing mechanism.

To provide means for masking the registers during resetting of said registers.

To provide means for locking certain registers of the machine against unauthorized inspection.

To provide automatic ticket positioning means which is adapted to present different portions of the-ticket to the printing mechanism.

To provide an interlock mechanism which prevents operation oi the machine until the ticket door is closed.

To provide multiple means operable in sequence for maintaining said ticket door locked until the dispensing operation is complete.

To provide means for preventing motion of the register driving trains during resetting.

To provide means for efl'ecting a gallonage printing operation by means which are operated only with the valve.

To provide means for giving the reset shaft a slight initial reverse motion to insure that all of the register dials will become engaged therewith.

To provide means whereby both predetermined quantity dials may be adjusted by a single operator.

To provide emergency release mechanism which -may be operated to terminate the dispensing on an even gallon or immediately without regard to the gallonage.

To provide a transfer mechanism which will operate substantially instantaneously.

To provide means .whereby certain elements in the predetermining mechanism may be driven independently of the meter.

To provide a control mechanism for a valve which may be connected. at either end to the valve.

To provide a mechanism of the type described in which a series of operations of the valve may be eflected manually without printing or resetting the registers.

To provide a mechanism in which a series of operations of the valve may be effected manually without printing or resetting and in which printing of the total gallonage dispensed during the series of operations is effected when the ticket door is opened.

To provide a mechanism of the kind described in which printing is automatically effected upon opening of the ticket door instead oi by the closing of the valve.

To provide a mechanism of the type friescribed in which termination of discharge is accomplished in two stages.

To provide a two stage valve and mechanism for operating said valve so that any desirable flxed quantity as for instance approximately twenty flve gallons of each delivery will be dispensed at less than the maximum rate of flow.

To provide a valve control mechanism for effecting termination of the flow of fluid in two stages and means for assuming the load imposed by the valve closing spring, independent of said control mechanism.

To provide a mechanism for automatically terminating the flow of fluid in two stages and means for instantly terminating said flow in instances of emergency.

To provide a mechanism for automatically terminating the flow of fluid in two stages or for manually terminating the flow at an even gallon independently of the setting of the automatic flow terminating mechanism.

To provide in conjunction with a two stage flow controlling mechanism a ticket printing mechanism which is interlocked therewith to enforce a predetermined sequence of operation.

To provide in connection with a two stage fluid flow controlling mechanism, a ticket printing mechanism which is operated automatically at the termination 01' fluid flow to record the quantity of fluid discharged.

To provide in connection with a two stage fluid flow controlling mechanism. manual means for performing a series of fluid dispensing operations, and means for printing a ticket at the end of said series of operations to record the quantity oi. fluid dispensed.

To provide a valve control mechanism which is adapted to enforce a fixed sequence of operations thereof to secure the accurate dispensing of a quantity of fluid and the taking of accurate records of the dispensing. operation.

To provide in a combination of mechanisms.

means for restraining certain of said mechanisms for operation in a predetermined sequence, while permitting the actuation of other of said mechanisms out of sequence so long as such actuation is not detrimental to the accuracy of the dispensing operation 'or of the record.

These and other objects will become apparent from a study of the speciflcation in connection with the accompanying drawings of which:

Figure 1 represents a general front elevation showing the relation of the meter, discharge valve, and control mechanism.

Figure 2 is a perspective view of the recording mechanism with the cover or mask removed and an end wall removed.

Figure 3 is an elevation showing the ticket chute in its ticket receiving position together with various interlocking mechanisms and part of the predetermining mechanism.

Figure i is a plan view of the ticket actuated interlocking mechanism.

Figure 5 is a detail elevation showing the volume register shutter operator.

Figure 6 is an elevation partly in section showing the ticket chute locked in its forward or door locking position.

Figure 7 shows the details of the ticket.

Figure 8 is an end elevation showing details of the printing hammer operating mechanism and the cocking mechanism for the predeter mining pawls.

Figure 9 is a front elevation of the mechanism of Figure 8.

Figure 10 is an elevation showing the control bar operated toggle mechanism which operates the operations counter and the hammer tripping mechanism.

Figure 11 is an end elevation with parts broken away of a volume register dial 0! the lowest order and the driving train locking means.

Figure 12 is a front elevation of the volume register dial of Figure 11 shown partly in section.

Figure 13 is a perspective view showing the printing mechanism and the drive from the meter to the printing wheels and to the volume register.

Figure 14 is a front elevation of a printing wheel.

Figure 15 is a side elevation with parts broken away of the units or lowest order printing wheel.

Figure 16 is a side elevation with parts broken away, of the printing wheels of superior orders.

Figure 17 is an elevation of the meter identiflcation unit.

Figure 18 is a plan view of the meter identification unit.

Figure 19 is an end elevation with parts broken away, of the clutch and other mechanism-used to connect the resetting driving train with the resetting shaft.

Figure 20 is a plan view, partly in section of the mechanism shown in Figure 19.

Figure 21 is an end elevation partly broken away, of one 01' the volume register dials of the higher orders.

Figure 22 is a section taken on the line 22-22 of Figure 21.

Figure 23 is an end elevation of the counter used to record the number of operations of the mechanism.

Figure 24 is a plan view of the mechanism of Figure 23.

Figure 25 is an expanded perspective view of the predetermining mechanism, total gallons accumulating register, and operations register.

Figure 26 is a perspective view of the control bar and its associated mechanism.

Figure 27 is an elevation showing the control bar and its retaining pawls.

Figure 28 is a detail showing the control bar and its slide member which permits setting of the predetermining mechanism after resetting is completed.

Figure 29 is a perspective showing the means for locking the total accumulator and total operations registers shutter.

Figure 30 is a plan view partially in section showing the predetermining device and its associated setting mechanism.

Figure 31 is an elevation taken on the line 3i3l of Figure 30 showing the ratchet drive to the small increment predetermining dial.

Figure 32 is an elevation showing a part of the emergency release mechanism.

Figure 33 is an elevation showing the emergency release, ratchet actuating pawl.

Figure 34 is an elevation showing a locking pawl adapted to prevent retrogression of the hundred gallons predetermining dial.

Figure 35 is a perspective of a modified hammer tripping device.

Figure 36 is an elevation showing the intermediate cam of the two stage valve control mechanism and its associated elements.

' Figure 3'7 shows the first cam of the two stage valve control mechanism and its associated mechanism.

Figure 38 is a perspective view showing the manually operable two stage valve controlling mechanism aside from the operating cams.

Figure 39 is an elevation partly in section of the two stage valve and its operating mechanisms.

Figure 40 is an elevation showing a portion of the valve linkage in the fully actuated position.

Figure 41 is a view similar to that of Figure 40 showing the linkage in the first stage position.

Figure 42 is an elevation showing a modified arrangement of the control mechanism in its operated position.

Figure 43 is an end elevation of a modified.

form of latching device.

GENERAL DESCRIPTION Figures 1 and 2 The invention relates to a quantity predetermining, ticket printing register adapted for use on tank trucks such as those used for delivering fuel oil, gasoline and other liquids of like ties as will be obvious as the description proceeds. In such organizations a meter H is usually connected to a control valve ll by means of a nipple l3, and the valve is connected to an air release mechanism which in turn is connected to the tanks or compartments of the .truck.

nature, although it may be used in other capaci- 7 The discharge from the meter is conducted through a check valve to a flexible conduit (not shown) which serves as the discharge conduit. A lever Ilis pivoted at 20 on the valve body and is provided wlth a yoke 22 which engages a downwardly facing shoulder 24 on the valve stem 2|. Said valve stem is provided with a plurality of perforations as shown at 23 for the reception of a pin 25 which serves to support one end of a link 21 for motion with said stem. The other end of link 21 is pivoted by means of a trunnion 28 to one end of a link 29 which is in turn pivotally mounted at its lower end on a projection 35 of the valve body by means of a pin 3| which is retained in one of a plurality of openings in said projection.

The trunnions 23 are fixed to a block 31 which is adjustably mounted by means of threads upon a yoke 39 which is attached to the end of a control bar H by means of a pin 43.

Mounted upon the meter cap 45 by means of cap screws 41 is the base 49 of the quantity predetermining, ticket printing register which comprises a mask or casing 5| having windows 53, 55 and 51 through which are visible respectively, the predetermining dials, the volume registering dials and the total volume and operation number dials. The knob 59 serves to adjust the predetermining dials and with knob 8| serves to release the predetermining mechanism as will be described below. A cover 63 is provided to close the entrance to the ticket chute and a projection 35 is provided above the cover to prevent entry of rain, etc. into the clearance slot above the cover. A crank 61 projects through the mask 5| and is operable under certain conditions to reset the volume register and perform other functions which will be described in detail below. The key 69 operates a lock to prevent unauthorized inspection of the total gallons and operations registers to be described.

REGISTER CONSTRUCTION AND DnIvEs Figures 2, 11, 12, 13 to 16, inclusive, 19 to 24, inclusive Referring to Figure 2, the numeral 1| represents, generally, the volume register which discloses the quantity of fluid dispensed during a single operation while the numeral 13 represents the total volume register which accumulates the total volume of fluid dispensed in a great number of successive transactions. Numeral 15 indicates, generally, the printing wheels which register the same item as the register 1| and are adapted to yield a printed record which conforms with the indication found on register H at the end of a dispensing operation. Numeral 11 indicates an accumulator which is advanced one unit upon each operation of the valve for dispensing fluid.

In Figure 13 is disclosed a meter driven shaft 19 which is provided with a worm 8| which in turn drives a worm wheel 83 fixed to shaft 85. A gear 81 is fixed to shaft 85 and through an idler gear 89 it drives the gear 9i which is associated with the lowest or units order type wheel 93 which is mounted for free rotation in one direction with respect to the resetting shaft 95. See Figures 14 and 15.

The gear 9I'has pivoted to its inner face 91 by means of a pin 99, the pawl I9I which is urged outwardly into engagement with a fine toothed ratchet I09, which is formed integrally with the wheel 99 by a spring I95 also mounted on the gear face 91.. The wheel 99 carries type characters 94. Both the gear and the type wheel are provided with hubs which are adapted to turn on shaft 95.

Mounted externally of the type wheel and fixed thereto for rotation therewith is the Geneva transfer pinion I01 which is adapted to mesh with the Geneva gear I09 mounted on shaft III (Figure 13). The gear I09 is integral with a spur pinion I I9 which meshes with the gear II of the next superior order printing wheel II1 shown in Figures 13 and 16. A pawl H9 is pivoted on the face of gear II5 by means of pin I2! and is urged into engagement with a coarse ratchet I29 by means of a spring I25 also mounted on gear H5. The ratchet is connected to drive the type wheel which also carries a Geneva transfer pinion I21. Both the gear H5 and the type wheel are mounted on hubs which are rotatable on shaft 95. The transfer of motion from type wheel I I1 to type wheel I29 and thence to type wheel I3I is accomplished by combined Geneva gears and spur pinions similar to those indicated by the numerals I09 and I I3 respectively. The internal structure of the type wheels I29 and I3I is the same as that disclosed in Figure 16 in connection with the wheel II1.

Each of the type wheels is provided with a recess I93 as shown especially in Figure 15, in which are mounted a resetting pawl I35 and a spring I91. The pawl is urged toward shaft 95 by said spring and tends to engage a V-shaped groove I99 which is cut in said shaft for resetting the type wheels as will be disclosed.

In Figures 13, 17 and 18 is shown a disc I which is fixed for rotation with the resetting shaft 95 and which carries a plurality of type I49, I45 in a slot I41 extending radially of the disc. A set screw I49 and a shim I 5I serve to maintain said type in position in the disc. The type, since they are fixed to the reset shaft, will occupy a position in which they may be struck by the hammer during all printing operations, hence an impression will be taken therefrom each time printing occurs.

The volume register 1I registers the individual transactions and is reset before each succeeding delivery. This register is also driven from the aforesaid meter driven shaft 85 through the intermediary of a gear I53 which is fixed to shaft 95, and an idler gear I55 which meshes with the gear I51 of the lowest order quantity indicating dial I59 shown in Figures 11 and 12. Attached to said gear I51 by means of a pivot pin I5I is a pawl I59 which is urged outwardly by means of a spring I65 to engage a ratchet I51. The latter is mounted on a hub and is clutched to the dial I59 as shown at I69. Formed integrally with the dial is a Geneva transfer pinion I1I having a locking rib I13.

Seated in a recess I15 in the dial I59 is a pawl spring I1.1 which is adapted to press a pawl I19 which is also seated in the recess, toward a V-shaped groove I8I in the resetting shaft 95 upon which all of the quantity dials in the register are mounted for rotationin one direction; rotation of said dials in an opposite direction is prevented by pawls I19.

A ratchet I95 is also fixed to gear I51 and is adapted to co-act with a pawl I91 to prevent backlash from being taken out of the dial driv- In! train during resetting.

In Figure 2 are shown the superior order voltime registering dials I99, I9I and I99, the detailed construction of which is disclosed in Figures 21 and 22. The dial I99 there shown. is exactly the same as the dials I9I and I99.

Mounted on dial I99 by means of studs I99, is an internal ratchet I91. The hub I99 of the dial supports a hub 29I which is fixed to the driving gear 299 and which carries by means of a pivot 294 the pawl 295. The latter is adapted to be forced into engagement with ratchet I91 by a spring 291 to transmit motion to said ratchet in one direction. A recess 299 which is provided in the dial, is formed substantially like the recess I15 (Figure 11) and is adapted to receive a pawl and spring similar to those indicated in Figure 11 by the numerals I19 and I11 respectively. A Geneva pinion 2H and the locking annulus 2I9 are formed integrally with the dial.

Transfer is accomplished between the dials I19 and I99, first described. by means of a Geneva gear 2I5 which is driven by the pinion I". A

spur pinion 2 is formed integrally with the gear 2I5 and transmits motion to gear 209 of dial I99. The latter dial receives a one tenth rotation for each rotation of dial I19 and is locked in its rotated position by the annulus I19 which engages two adjacent teeth of gear 2I5. Transfers of similar magnitudes are accomplished between dial I99 and dial I9I by the combined Geneva gear and spur pinion 2I9, while a like transfer is accomplished between dials I9I and I99 by the combination gear 22l.

In Figure 25 is disclosed a shaft 225 which is driven from shaft 19, described above, by means of worm 9I and worm gear 229. The lowest order dial 221. of the total quantity accumulator 19 is fixed to rotate with this shaft. A Geneva transfer pinion 229 is fixed to this dial and serves to drive a combined Geneva gear and spur pinion 23I which is freely mounted on a shaft 292 to drive a gear to which is fixed the next highest order dial 299, said latter dial being also mounted for free rotation about shaft 225. The remaining dials are likewise freely mounted on the shaft 225 and are connected by transfer mechanisms which are similar to that Just described. These dials are not resettable.

A step by step accumulating register 11 is provided for indicating the number of dispensing operations performed by the printing register. The register 11 comprises a number dial 295 of the lowest order which is mounted for free rotation about the shaft 225 described above (see Figures 23 to 25). A Geneva pinion 291 is formed integrally with said dial and is adapted to drive a combined Geneva gear and spur pinion 299 which is mounted for free rotation on shaft 292 and which drives a gear attached to the counter dial of the next highest order. A spacer 2 is provided between the accumulators 19 and 11 and a rotatable hub 249 is provided between the accumulator 11 and the end frame 245 to maintain the loosely assembled elements in place on the shaft 225.

Formed integrally with dial 295 is a ratchet 241 while mounted integrally with hub 249 for free rotation upon shaft 225 is a pawl carrier 249 to which is pivoted by means of a pin 25I, the pawl 259. A spring 255 urges the pawl into engagement with the teeth of ratchet 241.

Also pivotally mounted on the carrier by said pin "I, is a pawl 251 which is urged in a counter-clockwise -direction (Figure 23) by a spring 259 but which is prevented from passing in this direction beyond a position substantially in alignment with the center line of the pawl carrier, by an ear 26| which engages the lower edge of said pawl carrier. A stop pawl 263 is mounted for rotation about rod 232 and is biased in a pawl engaging direction by a spring 665.

It is to be noticed with respect to this register that in the number dials of higher orders, the ratchet shown in Figure 2'4 is replaced with a gear which is adapted to mesh with the spur pinion of the element 239.

The hub and its associated parts are operated by means which will be disclosed below in connection with the quantity predetermining mechanism.

Referring to Figures 2 and 29 it will be seen that pivoted upon shaft 225 by means of ears 261 is a shutter 269 which is adapted to be swung into position over the accumulating registers 13 and 11. An arm 21I is attached to one of the ears and is provided with a slot 213 which is adapted to receive a pin 214 on a depending lever 215. Said lever is attached to an element 211 of a lock 219 which is mounted in a boss 28I on frame member 245.

The lock element is adapted to be rotated by means of a key 69 heretofore described. As the key is rotated in a counter-clockwise direction (Figure 29), the lever 215 is rotated in a similar direction to impart to lever 21I and shutter 269 a rotation in a clockwise direction and the latter will be disposed in a position to cover the associated accumulators against unauthorized inspection.

A shutter 283 (Figures 2 and 5) having ears 285 which are perforated to receive shaft 95 upon which they are adapted to rotate, is provided to cover the quantity indicating register during resetting. A cam 281 is mounted to turn with a cam shaft 288 and is provided with a single notch 289. A pawl 293 is pivoted for free movement about the hammer shaft 292 and is formed with an arm 294 to which is attached, by means of a pivot pin 295, a link 291. The latter is pivoted by a pin 299 to one ear of the shutter at a point below the axisof shaft 95 as is clearly shown in Figure 5. A second link 30I is connected to the pivot pin 299 and to a spring 303 which is anchored to a fixed portion of the machine at 305.

The shaft 95 upon which the quantity dials are mounted is provided with a transverse opening 301 (see Figures 19 and 20) and has fixed to it by means of a key 309 the driven element 3 of a clutch. A control plate 3I3 is provided with a hub 3I5 which is adapted to embrace the portion of the shaft containing the opening and a pin 3I1 of smaller diameter than said opening inserted therethrough and is held in the hub. A pin 3I9 is fixed in said control plate and extends parallel to shaft I83 to support a roller 32I in a V-shaped notch 323 in the member 3| I'. A spring 325 and its follower-321 are mounted in arecess 329 in member 3 and are adapted to urge said roller 32| in a clockwise direction in Figure 19.

A dished, or shell element 33I serves as the driving element of the clutch and encloses the element 3 in such a manner as to be engageable by the roller 32I.' A gear 333 is fixed to drive the shell member and is in turn driven from the crank 61 (Figure 8) through the gear train comprising gears 335 and 331. A one way ratchet 68 (Figures 8 and 9) is connected to rotate with the crank 61 and a pawl 10 is pivotally mounted on a portion of a framemember. The pawl and ratchet cooperate to prevent operation of the crank 61 in a counter-clockwise direction (Figure 8).

The control plate is provided with a V-shaped notch 339 having a cam portion 34I. A pawl 343 is mounted for free rotation about a shaft 344 and is biased toward notch engaging position by means of a spring 345 which engages an arm 341 of said pawl. A second arm 349 of the pawl is adapted to be engaged by a crank pin 35I which is mounted by means of an arm 353, on the cam shaft 288. The latter also carries a cam 298 which operates the pawl I81.

Rnorsrizn, Ornm'rron mu Rnssrnnc As the meter drives shaft 19 during adispensing operation, shaft will be driven by means of the gears 8| and 83. Gear 81 rotates with shaft 65 and drives gear 9| on the lowest order type wheel through the idler 89. Gear 9| carries pawl IM and through the internal ratchet I03 it drives the type wheel 93 in such a direction that pawl I35 rides idly over the V-groove in the resetting shaft 95. Upon each revolution of type wheel 93, a one tenth revolution of the adjacent type wheel H1 is accomplished by means of the Geneva pinion and gears I01 and I09, the spur pinion H3 and gear H5, and the pawl and ratchet H9 and I23. Transfers are made from type wheel II1 to type wheel I29 and from the latter to type wheel I3I in a similar manner.

The rotation of shaft 85 also causes rotation of gears I53, I55, and I51,at,o the latter one of which is fixed the pawl I63 (Figure 11) which is adapted to drive ratchet I61 and the quantity dial I59 of the lowest order in such a direction that the resetting pawl I19 will ride over the V-shaped groove in shaft 95. For every revolution of this dial, a one tenth revolution is transmitted to the adjacent dial I89 (Figure 2'1) by means of the Geneva pinion HI and gear 2I5, spur pinion 2|1 and gear 203, and the pawl 205 and ratchet I91. Transfer of rotation from dial I89 to dial I9I, and from the latter to dial I93 is effected by means of mechanisms identical with that just described. Due to the provision of the locking flanges I13 and 2I3 on the dials. the transfer mechanisms will be locked except when a transfer is taking place.

As shaft 19 is turned by the meter during dispensing, shaft 225 is rotated due to the gears 8| and 223. Fixed to rotate with the shaft is the lowest order dial 221 of total quantity accumulator (Figures 2 and 25). This dial is adapted upon each revolution, to drive the adja cent dial 233 one tenth at a revolution by means of the Geneva pinion 229, the combined Geneva gear and spur pinion 23I, and a gear on the adjacent dial. All of the dials except 221 are free to rotate on shaft 225 and each dial is driven, by gearing identical with that just described, from the adjacent lower order dial. These dials are not resettable.

As the hub 243 (Figures 23 and 24) is oscillated on shaft 225, the pawl carrier 2'49 and pawl 253, advance ratchet 241 and consequently, counter dial 235 one tenth of a revolution. Retrogression of the dial when the pawl returns to starting position is prevented by the locking pawl 263 which engages the ratchet 241. The mechanism for causing oscillation of the pawl carrier will be described below. Transfer between the various orders of dials is accomplished by means of the Geneva pinion 231, the combined Geneva gear and spur pinion 233, and a spur gear which is mounted on the succeeding order dial instead of the ratchet 241 which is disclosed in connection with dial 233. This register is not resettable.

In order to reset the type wheels and the quantity indicating dials to zero, it is necessary to rotate crank 31 in a counter-clockwise direction (Figure 8). It requires two rotations of gear 333 to produce one rotation of gear 331 while two thirds of a rotation of gear 331 produces a full rotation of gear 333. Thus two rotations of crank 31 will give ample opportunity for resetting the registers and thereafter perform other functions such as re-cocking the hammer and releasing the control bar for operation by the valve. As the gear 331 begins to rotate, the cam shaft 288 driven thereby, rotates to drive the cam 233 to force pawl I81 into engagement with the ratchet I85 to prevent the removal of backlash from the register driving gear train.

At the same time rotation of crank 353 in a counter-clockwise direction (Figure 19) is effected to rotate pawl 343 in a clockwise direction against action of spring 343. Because of the overhanging cam element I on control plate 3I3, the latter will be given a slight counterclockwise rotation against the action of spring 325 to rotate the resetting shaft in a reverse direction so as to pick up any reset pawls which may be near the groove in the reset shaft and as the pawl 343 clears the cam, roller 3I3 will be forced into contact with the driving and driven elements 33I and 3| I respectively to render the clutch operative. The motion of the control plate to permit engagement of the clutch as Just described, is permitted by its lost motion connection with shaft 35 (Figure 20). The rotation of gear 333 will now be effective to rotate shaft 35 in a clockwise direction (Figures 11, 15, 16,) and the resetting pawls I13 of the quantity register dials and resetting pawls I35 of the type wheels which have not as yet become engaged will be engaged by the groove in the shaft 95 and will be driven to the zero indicating position. When this position is reached pawl 343 will engage notch 333 in the control plate and additional rotation of gear 333 will free the clutch. When the gear 331 completes its rotation the fiat side of cam 233 will be adjacent the pawl I81 which will thereupon disengage the ratchet I33. Referring to Figure 5, it will be seen that the cam 231 will also be rotated in a clockwise direction by the described rotation of the cam shaft 288, to initially cam pawl 293 out of notch 283 thus giving it a clockwise rotation which is transmitted by link 291 to the shutter 283 with the result that the latter is raised to cover the quantity register dials. When resetting has been completed and the shaft 288 returns to normal position, the pawl 293 will again engage notch 233 and permit the shutter to be withdrawn by spring 303.

Before the resetting operation may take place however, a ticket must be inserted in the machine to unlock the resetting mechanism. This interlock will now be described.

positions of Figure 3. The door 33 is pivoted at 355 to the mask or cover and is provided with an inwardly extending am 331 which carries a sealing flange and .ticket deflector 333 and a cam 33I.

.A lever 333 is pivoted for free rotation about the resetting shaft 33 and one end thereof cooperates with the side of lever 331 and the cam I while the other end is fashioned as a locking abutment as shown at 333. This lever is urged in a counter-clockwise (Figure 6) direction by a spring 331 into en agement with a stop 333.

A second lever 333 is pivoted on shaft 33 and extends through a slot 31I in the down curving portion 313 of the ticket chute indicated generally by the numeral 313. This lever 333 carries an arm 311 which is adapted to be engaged by a spring 313 which biases the lever for motion in a clockwise direction about shaft 33. A projection "I is provided on the upper edge of the lever and is adapted to engage a square projection 333 on the chute supporting bail 333 which comprises a pair of upright members 331 and 333 connected at their upper ends by a cross member 33I upon which is mounted the ticket chute 313. The upright members are mounted for rotation about the shaft 33.

A locking member 333 is connected to lever 383 and is provided with a notched position 333 which is adapted to overlie a bent over end of a lever 331 which is provided to lock the ticket chute in the Figure 6 position during dispensing.

The ticket chute is provided with an enlarged opening 333 to facilitate the entrance of the ticket. Both walls of the chute are cut away as shown at 43I to provide a window like opening which is arranged in a. position directly over the type wheel and under the hammer to permit the taking of an impresion from the type wheels.

A ticket deflector 433 is fixed to the mask 3| directly beneath the opening therein to assist in guiding the ticket into the ticket chute.

As is disclosed in Figure 6, a spring 433 is attached at one end to the bail 333 and at its other end to a fixed element and is adapted to urge the bail toward the Figure 3 position wherein the bail member 331 contacts a notch 431 in a cam 433 which is mounted for rotation with the cam shaft 233. v

The ticket which is indicated generally by the numeral 4| I is preferably in the form of a book comprising a plurality of printed forms 3 similar to that shown in Figure 7, interleaved with a plurality of carbon sheets I3. The printed forms are assembled facing downwardly (Figure 3) while the carbon sheets are assembled with the carbon side up. These elements are stapled or otherwise fastened together at their lower ends. This assembled pack is inserted in the chute with the connected end first and with the face of the printed sheets downward. In order to protect the lowermost carbon sheet, a cover 1 i provided.

The hammer operating shaft 232 is journalled in bearings mounted on the frame member of the machine. Fixed to rotate with said shaft are a cam follower lever H3 and a lever 42I to which are attached a hammer actuating lug 423 and a spring support 423. The lever is also provided with a depending arm 421 to which is attached one end of a spring 423. The opposite end of the spring is anchored by being hooked about a shaft.

F eely mounted on shaft 232 is a hub 43I which carries an arm 433 to which, at its outer end, is fixed a hammer element 433. The latter element is provided with a block 481 of rubber or other suitable material which is adapted to take good impressions from type. A lug 488 extends laterally from arm 483 to engage lug 423 described above. Anchored atone end on the support 425 is a spring I which at its other end is looped through .an opening 448 in arm 438. This spring urges the lug 483 into engagement with the lug 428 to hold the hammer away from the upper opening I in the tkket chute. A stop member 445 which is fixed to the frame of the machine by pin images the depending arm 425 to limit the clockwise rotation of said lever (Figure-13) under action of spring 423. The cam follower lever 4" is provided with a roller follower element 443 which is adapted to be operated by a two lobe cam 48i which is fixed to rotate with the cam shaft 288 (Figure 13).

Also fixed to rotate with the hammer shaft 232 (Flguresul, 9 and 13) is a depending lever 458 which is provided with a plurality of shoulders 455, 455, 451 and 453. Pivoted for rotation about shaft 344 is a double armed lever 48l one arm 453 of which is bent transversely as at 455 to engage the pawl 251 described above, while the other arm 451- is provided with a projection 483 which carries a pin upon which is anchored a spring 411; a stop ear 413 which is adapted to cooperate with shoulders 455 and 458 on lever 453; a bent over ear 415 which is adapted to cooperate with the shoulder 451 on lever.453; and a projection 411 which is adapted to be contacted and depressed by a roller 85i on arm 353 of the cam shaft 288.

A disc 483 having a projection 485 is mounted for rotation with cam shaft 288 and lies in the same plane as the lever 458. The projection 458 of the lever is adapted to cooperate with said projection 485 to lock the shaft against rotation.

Trcxrrr CONTROLLING AND Pam'rrne Mncnsmsu Omsrron At the end of a dispensing operation and after removal of the printed ticket, the ticket chute and its associated mechanisms occupy positions which are disclosed in Figure 3. To begin another dispensing operation the operator must reset the printing wheels and the quantity register dials by rotating crank 51. Due to the gearing 335, 331, the cam shaft 288 would also be rotated as the crank is turned and therefore cam 483 would be rotated to in turn force the bail 885 to the right in Figure 3. This, however, is prevented due to the locking engagement of the square element 383 with shoulder 88i on lever 853 which is swung into and held in its active position by spring 313 so long as there is no ticket in the machine. Thus it will be seen that it is impossible to reset the registers until a ticket has been inserted.

I swing in a clockwise direction about shaft 88 and By lifting the cover 83, the operator may insert the ticket pack 4| i as described aboveand as the latter enters the chute, the leading edge of the pack will engage the end of lever 853 which projects through the slot "I in the chute and will depress it. This motion of the lever moves the shoulder 38i out of engaging relation with the projection 383. Sufllcient motion of lever 383 is required to perform this operation so that when it is effected the ticket will project only slightly from the mask 5i.

It will also be observed that when the cover 88 was lifted the lever 351 and cam 88i operated successiveiy to depress and retain depressed, the lever 383 against the action of spring 381 with the chute 318 will be carried toward the doors to the position of Figure 60. In this position the ticket forms are in position so that the lower line (Figure 7) which is opposite thelegend Reading at start of" del will be in alignment with the type wheels. It is also to be noted that in this position of the ball, the projection 888 overlies the locking member 855 on lever 388 and in turn locks the latter in position against the stop 386. The lever being thus locked against substantial rotation, locks the door 83 against opening by reason of. its engagement with the lever 35''.

As a further result of the rotation of bail 888, the depending lever 333 is moved beyond the bent over end of the lever 33'! and as the latter is raised upon further rotation of crank 81 as will be described, the parts just described are locked in the position of Figure 6 while the cam 433 is returned to its initial position by reason of the fact that shaft 288 makes one full revolution, to clearthe way for return of the ticket chute to its initial position approximately at the end of the delivery operation.

Another result eifected by rotation voif the cam shaft 288 as the ticket chute is rotated, is the lifting of the cam roll 443 and follower arm 4" to rotate the hammer shaft 232 in a counterclockwise direction (Figure 13). As a result of this rotation, the lever 42] is rotated against the action of spring 423 which is the hammer main spring. The hammer is drawn with the lever 42i in its movement by reason of the spring I and the first lobe of cam 45l is so located that at the end of that stage of the resetting operation at which the register elements have reached their zero indicating positions, the cam follower 4" will have 'been completely raised and will have cleared the lobe of the cam so that the hammer mechanism is in condition for a printing operation. It is restrained from such operation how ever, by reason of the fact that the latch 4 moves into such a position under the action of its spring 4' that its ear 415 engages the shoulder 451 of lever 453.

i It is not until lever 353 and its pin 85l (Figure 8) are rotated sufficiently to engage the abutment 4'" of lever 45l, that the lever 453 is released. At this stage of operation of the mechanism the resetting of the registers will have been accomplished and the zero printing phase will have been reached.

As the lever 48i is rotated by lever 358, the

lever 453 will be released to permit a sharp clock wise rotation of shaft 232 and lever 42i (Figure 13) under the action of spring 423. This motion is transmitted to hammer 435 by the coacting projections 423 and 423. Before the striking element contacts the type, lever 42! engages the stop 445 and halts suddenly. while the hammer element continues its motion under the influence of 8 assassin its inertia and against the action or spring I, for engaging the projection. Bentover ears m. tostriketheticketpacksmartlyagainstthetype oneoneschpawlIIIandIllareperforatedto wheelstotherebytakeanimprusion. 'lhehamreceivetherespectiveendsofatensionspring mer elem'ent rebounds immediately from the type III which serves to draw the pawls toward each wheels'and returns to its normal position relative to lever Ill. under the action of spring III.

At this stage the resetting has beencompieted and the seroshavebeenprintedonthe ticket to show the condition of the registers, but the rotation of the cam shaft has progressed approximatel only two thirds of a revolution. The remaining one third of the revolution brings the second lobe of cam III into operative relation with respect to follower III and the latter is againraisedtoeockth'ehsmmer. Howevecas the cam passes from under the cam follower, the latching lever III of Figure I will again retain the lever III in its actuated position and the hammer will thus be held in position for a sub- It is to be understood that the lever III will occupy a more nearly vertical position than that shown in Figure 8 when the uncooked position.

The main function of the ear "I on lever III is to engage with the shoulders III and III respectively of lever III to maintain the first mentioned lever in proper position. against the achammerisinthe tion of spring I'll. At the completion of the sec-.

and hammer cocking operation, further movement of crank I! will cause the protection or cam III to actuate its foll'owerIIIfor a purpose to be described, and thereafter, the projection III on disc III will come into abutting relation with the shoulder III on lever III and bring to a conclusion this phase of the cycle by preventing further rotation of the crank and its associated elements. 4

QUANTITY Pasomnxmmo Mummers Figures 2, 3, 6, 8, 9, 10, 25 I 28 inclusive, 30 t0 34 inclusive I A pitman I81 is pivoted at its lower end (Figures 2, 8, and 26) to an upright lever III which is fixed to turn a shaft III. The upper end of the pitman is formed as a yoke which embraces the shaft III (Figure 9) so that the piiman will be guided thereby. A cam III is mounted to rotate with the resetting shaft and a follower III for the cam is fixed on the pitman.

Fixed to rotate with the shaft III are levers III and III which occupy the same angular position on the shaft, are duplicates in form, and are spaced axially along the shaft. The lever I" having the bent over ear which cooperates to lock the chute mechanism in its zero printing position is fixedly mounted on the shaft and an upstanding arm "I, also fixed to the shaft, has connected thereto at its outer end a spring III which is anchored on a fixed element and serves to bias the arm III and shaft III in a counter-clockwise direction (Figure An upstanding pawl III is fixed to shaft III by reason of its huh I" being pinned thereto.

' The pawl has a projection III which extends parallel with the axis of shaft IIl. Pawls III and III which are alike in construction, are provided with hubs and are mounted loosely on the shaft I so that their hubs are in abutting relation. This arrangement of the pawls causes one to be disposed above and the other below the horizontal plane passing through the axis of the shaft IIl asisshowninPigureI'Lsothat the projection III of pawl III may be received between them. Pads IlI areprovided on the pawls other and toward the proiection III. The outer endsofthepawlslIIandIlllierespectively aboveandbelowtheedgesoi'theeontrolbarll and are adapted to ooact with notches III and III respectively which are formed in the edges ofthe control bar.

An m'i htstandard III (Figure 2) serves to rotatably support a shaft III (Figures 28 and to which is pinned an upwardly extending actuating lever III, the end of which is rounded as shownatIII. Alsopinnedtosaidshaftisa clutch member IIl having two clutch faces III and III. An upwardly extending arm III is pinned to the end of shaft III opposite the lever Ill.

Loosely mounted on shaft III are a pair of similarly formed bell cranks III and III having hubs which extend from opposite sides of the levers and which are formed with clutch faces III and III. These clutch faces are adapted to engage the complementary faces of the member "I ,on the opposite ends of which they are arranged. The clutch faces are so formed that there will be some lost motion between the bell cranks III and III and the clutch member III as is clearly shown in Figure 34. A spring I" is anchored at III on the member III and has its ends hooked under the bell cranks III and III so that the lost motion mentioned above will be taken up in the clockwise direction (Figure 26). That is, the bell cranks will be retained in their farthest clockwise position (Figure 26) with respect to the member "I by means of spring I".

Mounted for rotation and axial sliding motion in bearings III of the standard III, and crosswise of shaft III is the shaft III. This shaft is provided with a handwheel II and a pair of collars III and III which are pinned thereto and are adapted to receive the upper end I" of the lever I21. The shaft, at its inner end rides freely in the hub III of gear III and carries a pin III which engages a slot in the hub III of gear IIl so that rotation may be transmitted to the gear from shaft III while axial motion of the shaft independent of the gear is permitted. A spring III surrounds shaft III and is compressed between collar III and the bearing III to retain the shaft in its outermost position. As a result of the action of this spring, the shaft III is normally maintained in its farthest clockwise position.

The bell crank III comprises a depending arm which is notched as at I" to engage the end of pawl III of shaft III. It also comprises a substantially horizontally extending arm which is provided with a cam follower III. Similarly the depending arm of hell crank III is provided with a notch I'll for the reception of pawl III also on shaft III, and the horizontal arm is provided with a cam follower III.

The standard III also supports in bearing III a shaft I" which is located above and extends parallelto the shaft III (Figures 30 and 31). To one end of this shaft is pinned the horizontally extending arm III and to the other is pinned the pawl carrier III. The pawl III is pivoted by a pinllltothecarrierandisurgedtorotateina clockwise direction (Figure 33) by spring I". Thispawlis oflsetasisclearlyshowninl'lgures 26 and Y30 and is provided with an ear III which overlies the pawl 505. The pawl carrier SM is provided with an abutment 569 which is normally overlain by a projection 59l of the lever 531. At the right hand edge (Figure 33) of the abutment, the carrier is cut away so that a slight clockwise rotation of lever 591 will clear the abutment and will permit the carrier to be rotated in a counterclockwise direction;

Lever 519 mentioned above is provided with a depending link 593 which at its lower end is provided with a button 6| which is disposed outside of the housing or mask.

The control bar 4 I, shown especially in Figures 26, 27, and 28 is provided with a slide 595 which is mounted on headed pins 591 and 599 which are fixed in the control bar and which extend through slots 661 and 663 respectively in the slide. The slots are enlarged at one end to the size of the pin heads to facilitate assembly of the slide on the control bar. A pin 665 is mount- 1 ed in the slot of the control bar and a helical tension spring 601 is disposed in a slot 609 in the control bar and is anchored on and extends between the pin and a hole 6 in the slide. The spring serves to hold the slide with the ends of the narrow portions of the slots 60! and 663 in abutment with the pins. The slide is narrower than the bar 4| and lies with its upper and lower edges within the upper and lower edges of the bar so that the notches 519 and 521 will not be barred by the slide proper. However, the slide is provided at its upper edge with 8. lug or projection 6| 3 which serves to bar entrance of the pawl 569 into the slot 519 when the slide is in its farthest left hand position (Figure 28). The control bar as just described is arranged so that opening of the control valve will move the bar to the right in Figure 26.. This quantity predetermining mechanism is described and claimed in my copending divisional application Serial No. 361,417 filed October 16,,

However, it may be necessary or convenient to locate the valve at the left of the predetermining device instead of at the right as shown in Figure 1, and in such case the control bar 4| would be moved left (Figure 42) during the opening of the valve. To meet this condition the slide 595 would have to be reversed, end for end, and the spring 661 would have to be anchored as at 615 to exert its tension on the slide in a right hand direction in Figure 42. Openings 611 and H9 are provided at each end of the control bar so that the valve linkage may be connected to one end or the other thereof.

An elongated slot 621 (Figures 8, 10 and 26) is provided transversely of the control bar 41 to receive a pin 623 which is mounted at the end of a link 625. This link is in turn pivoted by means of pin 621 between the arms of a yoke 629 which is fixed to the frame of the device. The pin 623 also carries the lower end of a link or pitman 631 which at its upper end is connected by a projecting ball shaped journal 633 to the hub 243 of the pawl carrier 249 described above. The control bar ll is shown in Figure 10 in its extreme right hand position, but when the bar is in its normal position, that is, with pawl 509 seated in notch 519, the link 625 assumes a vertical position.

The links 625 and 631 form a toggle which is adapted to be operated when the control bar moves in either direction from the normal direction. Hence, when the valve is mounted at the left of the predetermining mechanism, the toggle will be actuated to the position shown in Figure 42. In either actuated position of the toggle the hub 243 will be rotated counter-clockwise (Figure 8).

Referring to Figures 3, 25 and 30, the worm gear 223 is provided with a hub 635 which is supported on one end of a fixed shaft 631, said hub being freely rotatable about the shaft. A cylindrical clutch element 639 is mounted on the hub 635 as a journal and is provided with progressively constricted recesses 6 adjacent the face of said hub, Rolls 540 are supported in said recesses and are urged toward the narrowest portions thereof by springs 645. These recesses are so arranged that the clutch element will receive a counter-clockwise rotation (Figure 3) from the worm wheel as it is rotated in this direction by the meter, while a rotation of. the element 639 with respect to the hub 635 in the said counterclockwise direction will be permitted by reason of the release of the rolls from the constricted portion of the recesses as will be apparent from an observation of Figure 3.

Fixed to rotate with the clutch element 639 are the one gallon predetermining disc 641, the emergency ratchet 649 and the planetary spider 65| which carries the planetary gears 653 and 655. A sun gear 651 is fixed to the shaft 631 and the driven sun gear 659 is carried about with the spider 651 in a counter-clockwise direction (Figure 25) while the planetary gearing effects a reduction in this rotation. A disc 66l is fixed to sun gear 659 and carries a pawl 663 which is biased in an outward direction by a spring 665 to engage an internal ratchet 661. The ratchet is mounted on a hub 669 which is rotatabiy mounted on shaft 631 and which is connected to the gallons predetermining dial 611 by a clutch 613 (see Figure 30). a

A gear 615 is fixed to rotate with the dial 61l by means of pins 665, while a cam 619 is also mounted on said pins but is spaced from said gear by a spacing element 611. A blank disc 681 is fixed at the outer end of said pins to provide room for a cam which is inserted in place of the discwhen the mechanism just described is used as a two-stage control mechanism which will be described below.

A pawl carrier 683 is mounted for free rotation about a sleeve 684 which rides freely on shaft631. The pawl carrier is provided with a bent over car 681 to whichis attached one end of a spring 689 which tends to rotate the pawl in a counter-clockwise direction (Figure 25). Said spring is anchored to'a relatively fixed shaft. A second bent over ear 691 is adapted to follow a cam 693 which is mounted for rotation about a shaft which is parallel to shaft 613. This cam is fixed to rotate with a gear 695 which is of the same size as and which meshes with gear 615. Thus the cam will be driven at the same speed as dial 611.

A pawl 691 is pivoted on the pawl carrier 683 and has attached to one arm thereof, a spring 699 which is anchored on the ear 69l just described. This spring biases the pawl for counter-clockwise rotation about its pivot (Figure 25).

Also mounted for free rotation upon the sleeve '6 is the hundred gallons dial 161 to which is attached on one side, the transfer ratchet 103 in a position to be engaged by the transfer pawl 691, and on the other side is attached the cam 165. A pawl 161 is pivoted upon the face of the 

